Presser foot for plain stitching and shirring



Jan. 9, 1934. J. CHUDNER 1,943,203

PRESbER FOOT FOR PLAIN STITCHING AND SHIRRING Filed March 2, 1932 7 1/ A5 q I 21 INVENTOR W'TNESS Joueph Uhuclnet ,ATTORNEXSQ Patented Jan. 9 1934 PRESSER FOOT FOR PLAIN STITCHING AND SHIRRING Joseph Chudner, Brooklyn, N. Y. Application March' 2, 1932. Serial No. 596,375 9 Claims. (Cl.'112-235) This invention relates'to an attachment for sewing machines for carrying out plain stitching and also shirring.

The principal object of the inventionis the 5 provision of an attachment in the form of a presser foot of dual character whereby plain stitching or shirring operations may be carried out.

,(Another objectcofthe invention is the provision of a spring actuated pivoted presser foot and means for adjusting the presser foot to convert it for use for carrying out shirring operations.

The nature of the invention and its distinguishing features and advantages will appear when the following specification is read in connection with theaccompanying drawing, in which Figure 1 is a perspective view of a presser foot embodying the invention;

Figure 2 is an enlarged vertical section of the presser foot and showing the parts adjusted for plain stitching;

Figure 3 is a view similar to Figure 2 showing the presser foot converted for producing shirring.

Referring now more particularly to the drawing, it will be apparent that there is shown a presser foot 10 having the usual toes 11, needle slot 12,'and a shank 13 for securing it in operative position on a sewing machine. The foot 10 is adjustable in relation to the shank 13, and to this end the foot 10 is pivotally mounted as at 14 on the lower end of the shank, the pivot 14 extending transversely and horizontally of the foot and lower end of the shank. The foot 10 has spaced upstanding lugs 15 between which the lower end of the shank 13 is disposed, and the opposite ends of the pivot 14 are secured in the lugs 15. An expansion spring 16 interposes the lower end of the shank 13 and the foot 10, said lower end of the shank having a bore 17 in which one end of the spring 16 is arranged to keep the spring from being displaced. The spring 16 has a normal tendency to urge the foot 10 to a position in which it will be properly disposed in relation to the shank 13 to cause the heel of the foot to exert pressure on the fabric as it passes under it; said foot 10 being limited in its movement to this position by a crosspiece 18 carried by the lugs 15 of the foot 10 and engageable with the shank 13. The presser foot hereinabove described is of standard type which may be converted into a shirring foot.

In accordance with the invention, means is provided for adjusting the foot 10 in relation to the shank 13 and also to maintain the foot in the adjusted relation for producing shirring. The said means consists of an adjusting screw 19 in threading engagement with the shank 13, and so disposed as to bear against or engage the crosspiece 18. If desired, an expansion spring 20 may be provided to oiTer resistance to the turning of the screw 19 to, in that way, prevent unintentional turning of the screw and upsetting of the adjustment of the foot.- The spring 20 surrounds the screw 19, and has one end thereof in engagement with the shank 13, and its opposite end in engagement with the manipulating head 21 of the screw. By manipulating the head 21 to rotate the screw 19 in one direction, the foot 10 may be adjusted or caused to move on its pivot 14 to assume a set position in relation to the shank 13 in which the toes 11 thereof will be ad.- justed forwardly and downwardly, and they will be held in this position by the screw 19 subject to variations in the fabric as it moves thereunder, and the action of the spring 16. The presser foot will then be converted into a shirring foot by which to produce shirring in material passed beneath the foot 10, as shown in Figure 3. When the head 21 is manipulated to turn the screw 19 in its opposite direction from that mentioned above, the foot 10 may be made to assume its normal position in relation to the shank 13. In this operation the screw 19 will be backed away from the cross-piece l8 and the spring 16 will cause the necessary pivotal movement of the foot 10 to bring the latter in the proper position in relation to the shank 13 to which it is limited by the crosspiece 18 in engagement with the shank 13.

I claim:

1. The combination with a pivoted springactuated presser foot, of means to variably limit the pivotal movement of the foot subject to the action of the spring thereof, for the purpose of producing shirring.

2. The combination with a pivoted spring actuated presser foot, of means carried by the shank of the foot above the pivot of the foot, to change the angular position of the foot and to hold it against movement in one direction from such position subject to the action of the spring thereof, whereby to produce shirring with the foot.

3. A sewing machine attachment comprising the combination with a presser foot consisting of a shank and foot member movable in relation to the shank, and resilient means constantly exerting pressure on the heel of the foot member, of adjustable means to variably limit the movement of the foot member subject to the action of said resilient means.

4. A sewing machine attachment comprising 110 the combination with a presser foot consisting of a shank and foot member having a cross piece movable in relation to the shank, and resilient means constantly exerting pressure on the heel of the foot member, of adjustable means carried by said shank which is engaged by said crosspiece to variably limit the movement of the foot member subject to the action of said resilient means.

5. A presser foot comprising ashank, a foot member having upstanding spaced lugs, the lower. end of the shank being disposed between said lugs, a pivot extending through said lugs and'the lower end of the shank by which the foot member. has pivotal movement to differentpositions of.ad-

justment, a cross member supported by the lugs above said pivot, and an adjusting element car ried by said shank which bears against said cross member to adjust the foot member.

6. A presser foot comprising a shank, a foot. member having upstanding spaced lugs, the lower end of the shank being disposed between said lugs,

a pivot extending through said lugs and the lower end of the shank by which the foot member has pivotal movement to different positions of ad-- wardly, and an adjusting element carried by said shank which bears against said cross member to variably limit the pivotal movement of the foot member subject to the action of said resilient means.

7. A sewing machine attachment comprising the combination with a presser foot consisting of a shank and foot member having pivotal connection with the shank, and resilient means inter- .posing the shank and foot member to constantly urge the heel of the foot member downwardly, of adjustable means to variably limit the pivotal movement of the foot member in one direction subject to the action of said resilient means.

8. The combination with a presser foot comprising a shank and a foot member pivotally connected with the shank intermediate its ends, of means to tilt'the front portion of the foot member downwardly and to limit the upward movement of said front portion.

' 9. The combination with a presser=foot comprising a shank and a footfpivotally connected with the shank intermediate its ends, of adjustable means carried by the shank to limit the upward movement of the front portion of the foot;

member to various degrees of adjustment.

JOSEPHJCHUDNER. 

